EP0482374A1 - Electro pneumatic brake system - Google Patents

Electro pneumatic brake system Download PDF

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Publication number
EP0482374A1
EP0482374A1 EP91116391A EP91116391A EP0482374A1 EP 0482374 A1 EP0482374 A1 EP 0482374A1 EP 91116391 A EP91116391 A EP 91116391A EP 91116391 A EP91116391 A EP 91116391A EP 0482374 A1 EP0482374 A1 EP 0482374A1
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EP
European Patent Office
Prior art keywords
steering
electro
brake
brake system
control unit
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP91116391A
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German (de)
French (fr)
Inventor
Jürgen Dipl.-Ing. Wrede
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Robert Bosch GmbH
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Robert Bosch GmbH
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Publication date
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Publication of EP0482374A1 publication Critical patent/EP0482374A1/en
Withdrawn legal-status Critical Current

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
    • B60T8/00—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force
    • B60T8/24—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force responsive to vehicle inclination or change of direction, e.g. negotiating bends
    • B60T8/246—Change of direction
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K28/00—Safety devices for propulsion-unit control, specially adapted for, or arranged in, vehicles, e.g. preventing fuel supply or ignition in the event of potentially dangerous conditions
    • B60K28/10—Safety devices for propulsion-unit control, specially adapted for, or arranged in, vehicles, e.g. preventing fuel supply or ignition in the event of potentially dangerous conditions responsive to conditions relating to the vehicle 
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K31/00—Vehicle fittings, acting on a single sub-unit only, for automatically controlling vehicle speed, i.e. preventing speed from exceeding an arbitrarily established velocity or maintaining speed at a particular velocity, as selected by the vehicle operator
    • B60K31/0066—Vehicle fittings, acting on a single sub-unit only, for automatically controlling vehicle speed, i.e. preventing speed from exceeding an arbitrarily established velocity or maintaining speed at a particular velocity, as selected by the vehicle operator responsive to vehicle path curvature
    • B60K31/0075—Vehicle fittings, acting on a single sub-unit only, for automatically controlling vehicle speed, i.e. preventing speed from exceeding an arbitrarily established velocity or maintaining speed at a particular velocity, as selected by the vehicle operator responsive to vehicle path curvature responsive to vehicle steering angle
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
    • B60T13/00—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems
    • B60T13/10—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems with fluid assistance, drive, or release
    • B60T13/66—Electrical control in fluid-pressure brake systems
    • B60T13/68—Electrical control in fluid-pressure brake systems by electrically-controlled valves
    • B60T13/683—Electrical control in fluid-pressure brake systems by electrically-controlled valves in pneumatic systems or parts thereof
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
    • B60T8/00—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
    • B60T8/00—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force
    • B60T8/17—Using electrical or electronic regulation means to control braking
    • B60T8/1701—Braking or traction control means specially adapted for particular types of vehicles
    • B60T8/1708—Braking or traction control means specially adapted for particular types of vehicles for lorries or tractor-trailer combinations
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
    • B60T8/00—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force
    • B60T8/17—Using electrical or electronic regulation means to control braking
    • B60T8/1755—Brake regulation specially adapted to control the stability of the vehicle, e.g. taking into account yaw rate or transverse acceleration in a curve
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
    • B60T8/00—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force
    • B60T8/17—Using electrical or electronic regulation means to control braking
    • B60T8/176—Brake regulation specially adapted to prevent excessive wheel slip during vehicle deceleration, e.g. ABS
    • B60T8/1764—Regulation during travel on surface with different coefficients of friction, e.g. between left and right sides, mu-split or between front and rear
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
    • B60T8/00—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force
    • B60T8/32—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force responsive to a speed condition, e.g. acceleration or deceleration
    • B60T8/321—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force responsive to a speed condition, e.g. acceleration or deceleration deceleration
    • B60T8/328—Systems sharing components with other fluid systems onboard the vehicle

Abstract

An electro-pneumatic brake system is proposed in which an electronic control unit (2) is not only designed to trigger pressure control valves (3, 4) preconnected to the brake cylinders (5, 6) as a function of brake sensors, but also processes signals from a steering wheel moment sensor (19), in order to take account of these for the brake-operated triggering of the pressure control valves (3, 4) for the purpose of evening out the steering moments. The steering wheel moment sensor (19) may be arranged either in the steering wheel shaft (17) or at another point on the steering force transmission. The electro-pneumatic brake system is intended for commercial vehicles and buses. <IMAGE>

Description

Stand der TechnikState of the art

Die Erfindung bezieht sich auf eine elektro-pneumatische Bremsanlage nach der Gattung des Hauptanspruchs. Eine derartige Bremsanlage ist bekannt (DE-OS 3 617 356).The invention relates to an electro-pneumatic brake system according to the preamble of the main claim. Such a brake system is known (DE-OS 3 617 356).

Bei solchen Bremsanlagen wird bei Einzelradregulierung für jedes Fahrzeugrad eine individuelle Druckregelung durchgeführt. Es ist deshalb auch für jedes Fahrzeugrad ein eigenes, dem Radbremszylinder vorgeordnetes Drucksteuerventil vorgesehen. Da dann aber für die beiden links und rechts angeordneten Fahrzeugräder getrennte Regelkreise vorliegen, können die Drücke in den beiden Regelkreisen unterschiedlich sein.In such brake systems, individual pressure control is carried out for each vehicle wheel with individual wheel regulation. A separate pressure control valve, which is arranged upstream of the wheel brake cylinder, is therefore also provided for each vehicle wheel. Since separate control loops are then available for the two vehicle wheels arranged on the left and right, the pressures in the two control loops can be different.

Außerdem kann z. B. durch unterschiedliche Reibwerte in den Radbremsen links und rechts ein Schiefziehen der Bremsen auftreten.In addition, e.g. B. due to different coefficients of friction in the wheel brakes left and right, the brakes are pulled.

Vorteile der ErfindungAdvantages of the invention

Die eingangs genannte elektro-pneumatische Bremsanlage mit den kennzeichnenden Merkmalen des Hauptanspruchs hat demgegenüber den Vorteil, daß die durch die Einzelradregelung möglichen, unterschiedlichen Bremsdrücke zum Verhindern des Schiefziehens, insbesondere an der Vorderachse verwendet werden. Des weiteren ist von Vorteil, daß die Arbeit einer Blockierschutzeinrichtung bei u-split (bei unterschiedlicher Fahrbahnbeschaffenheit links und rechts) verbessert wird.The above-mentioned electro-pneumatic brake system with the characterizing features of the main claim has the advantage that the different brake pressures possible by the independent wheel control are used to prevent skewing, especially on the front axle. It is also advantageous that the work of an anti-lock device at u-split (with different road characteristics left and right) is improved.

Weiter ist es vorteilhaft, daß der Einbau des Lenksensors an der Lenkwelle keine Probleme bezüglich einer Temperaturbelastung, wie sie bei einem Einbau unmittelbar an den Radbremsen zu berücksichtigen wäre, mit sich bringt.It is also advantageous that the installation of the steering sensor on the steering shaft does not involve any problems with regard to a temperature load, such as would have to be taken into account in the case of installation directly on the wheel brakes.

Desweiteren ist es aus der Sicht des Bremsenfachmannes auch von Vorteil, daß zu einer zusätzlichen Lenkmomentsensierung nur ein einziger zusätzlicher Sensor notwendig ist; bei einer Bremsmomentsensierung würden zwei Sensoren gebraucht. Schließlich entstehen auch noch Vorteile dadurch, daß bei zu großen Giermomenten und bei einer Not- bzw. Fehlfunktion einer Radbremse der Fahrer eine Warnung erhält.Furthermore, from the brake specialist's point of view, it is also advantageous that only a single additional sensor is necessary for additional steering torque sensing; braking sensors would require two sensors. Finally, there are also advantages in that the driver receives a warning in the event of excessive yaw moments and in the event of an emergency or malfunction of a wheel brake.

Weitere Vorteile der Erfindung ergeben sich aus der Beschreibung und aus den Ansprüchen.Further advantages of the invention result from the description and from the claims.

Zeichnungdrawing

Ein Ausführungsbeispiel der Erfindung ist in der Zeichnung dargestellt und in der nachfolgenden Beschreibung näher erläutert.An embodiment of the invention is shown in the drawing and explained in more detail in the following description.

Beschreibung des AusführungsbeispielsDescription of the embodiment

Ein Nutzkraftfahrzeug (Lastwagen oder Bus) hat eine elektro-pneumatische Bremsanlage mit einem fußbetätigten Bremswertgeber 1, der zum Bremsen elektrische Signale in die Bremsanlage gibt. Diese Signale werden in der Bremsanlage in einem elektronischen Steuergerät 2 und in Drucksteuerventilen 3 und 4 so verarbeitet, daß nachgeschaltete Bremszylinder 5 und 6 mittelbar oder unmittelbar aus einem Vorratsbehälter 7 mit Druckluft beschickbar sind. An den Bremszylindern 5 und 6 sind Drucksensoren 8 und 9 angeordnet, die ihre jeweiligen Signale an das Steuergerät 2 abgeben. Ein Teil der dazu notwendigen Leitungsverbindungen wurde zum Zwecke der Übersichtlichkeit in der Zeichnung weggelassen. Die Bremsanlage ist außerdem noch mit einer Blockierschutzeinrichtung versehen, die mit Radsensoren 10 und 11 das Druckverhalten von Fahrzeugrädern 12 und 13 erfaßt. Diese Art der Bremsbestückung ist in der Zeichnung nur für eine Vorderachse eines Fahrzeugs dargestellt. Das Fahrzeug hat ein Lenkrad 15, mit dem über ein Lenkgetriebe 16 die Räder 12 und 13 der Vorderachse 14 zu lenken sind. In einer vom Lenkrad 15 verdrehbaren Lenkwelle 17 sind ein Lenkradstellungs- oder Lenkwinkel-Sensor 18 und ein Lenkradmomenten-sensor 19 angeordnet, die ihre Signale an das elektronische Steuergerät 2 geben. Ein Servomotor 20 sorgt für die Lenkhilfskraft.A commercial vehicle (truck or bus) has an electro-pneumatic brake system with a foot-operated brake value transmitter 1, which gives electrical signals to the brake system for braking. These signals are processed in the brake system in an electronic control unit 2 and in pressure control valves 3 and 4 so that downstream brake cylinders 5 and 6 can be fed with compressed air directly or indirectly from a reservoir 7. Pressure sensors 8 and 9 are arranged on the brake cylinders 5 and 6 and emit their respective signals to the control unit 2. Part of the necessary line connections has been omitted in the drawing for the sake of clarity. The brake system is also provided with an anti-lock device which detects the pressure behavior of vehicle wheels 12 and 13 with wheel sensors 10 and 11. This type of brake assembly is shown in the drawing only for a front axle of a vehicle. The vehicle has a steering wheel 15 with which the wheels 12 and 13 of the front axle 14 are to be steered via a steering gear 16. A steering wheel position or steering angle sensor 18 and a steering wheel torque sensor 19 are arranged in a steering shaft 17 which can be rotated by the steering wheel 15 and give their signals to the electronic control unit 2. A servo motor 20 provides the power steering assistance.

WirkungsweiseMode of action

Wenn das Fahrzeug geradeaus fährt und der Fahrer die Bremsen durch Niederdrücken des Pedals des Bremswertgebers 1 betätigt, dann wird das Steuergerät 2 mit einem Signal des Bremswertgebers 1 beschickt. Außerdem melden die Radsensoren 10 und 11 gleiche Drehzahlen an den Rädern 12 und 13. Die Raddrehzahl-Signale werden mit dem Signal des Lenkwinkel-Sensors (Winkel = 0°) verknüpft. In diesem Fall sollte normalerweise das Signal vom Lenkradmomenten-Sensor 19 Null sein bzw. innerhalb eines zulässigen Grenzwertes liegen.If the vehicle is driving straight ahead and the driver applies the brakes by depressing the pedal of the brake value transmitter 1, the control unit 2 is supplied with a signal from the brake value transmitter 1. In addition, the wheel sensors 10 and 11 report the same speeds on the wheels 12 and 13. The wheel speed signals are linked to the signal of the steering angle sensor (angle = 0 °). In this case, the signal from the steering wheel torque sensor 19 should normally be zero or be within an allowable limit.

Wird aber dieser Grenzwert überschritten, so wird im elektronischen Steuergerät 2 in Abhängigkeit von der Größe des Signals vom Lenkradmomenten-Sensor 19 und in Abhängigkeit von der Richtung,hervorgerufen durch stärkeres Bremsen des linken oder des rechten Rades 12 oder 13, ein Korrekturwert für die Drucksteuerventile 3 und 4 und damit für die Radbremsen der Vorderachse 14 vom Steuergerät 2 ausgegeben.If, however, this limit value is exceeded, a correction value for the pressure control valves is generated in the electronic control unit 2 depending on the size of the signal from the steering wheel torque sensor 19 and depending on the direction, caused by stronger braking of the left or right wheel 12 or 13 3 and 4 and thus issued for the wheel brakes of the front axle 14 by the control unit 2.

Bremst z. B. das linke Rad 12 bei gleichen Bremszylinderdrücken in den Bremszylindern 5 und 6 mehr als das rechte Rad 13 aufgrund eines höheren Bremsbelag-Reibwertes oder aufgrund eines niedrigeren Ansprechdruckes, so wird der Bremsdruck im Bremszylinder 6 des rechten Rades 13 erhöht und/oder der Bremsdruck im Bremszylinder 5 des linken Rades 12 abgesenkt, bis der Lenkradmomenten-Sensor 19 wieder einen Wert unterhalb des festgelegten Grenzwertes angibt.Brakes z. B. the left wheel 12 at the same brake cylinder pressures in the brake cylinders 5 and 6 more than the right wheel 13 due to one higher brake pad friction value or due to a lower response pressure, the brake pressure in the brake cylinder 6 of the right wheel 13 is increased and / or the brake pressure in the brake cylinder 5 of the left wheel 12 is reduced until the steering wheel torque sensor 19 again indicates a value below the specified limit value .

Da der dieserart erstellte Korrekturdruck für verschiedene, vom Fahrer mit dem Bremswertgeber 1 als Sollwert-Geber ausgegebene Drücke unterschiedlich sein kann, lassen sich diese Korrekturdrücke in Tabellen- oder Gleichungsform im Steuergerät 2 abspeichern und bei der nächsten Bremsung in Abhängigkeit vom Bremsdruck-Sollwert im vorhinein einsteuern.Since the correction pressure created in this way can be different for different pressures output by the driver with the brake value transmitter 1 as the setpoint generator, these correction pressures can be stored in table or equation form in the control unit 2 and in advance during the next braking depending on the brake pressure setpoint control.

Bei Kurvenfahrt kann der bei Geradeausfahrt ermittelte Korrekturdruck beibehalten werden. Außerdem kann im elektronischen Steuergerät 2 ein weiterer Grenzwert für das Lenkrad-Moment abgespeichert werden, der bei seiner Überschreitung zu einem Warnsignal oder einer Notreaktion des Fahrzeugs führt. Grund für einen solchen Fehler kann beispielsweise ein verölter Bremsbelag sein.When cornering, the correction pressure determined when driving straight ahead can be maintained. In addition, a further limit value for the steering wheel torque can be stored in the electronic control unit 2, which, if exceeded, leads to a warning signal or an emergency reaction of the vehicle. The reason for such a fault can be, for example, an oily brake pad.

Bei der beschriebenen Einzelregelung des Bremsdruckes für jedes Fahrzeugrad 12 bzw. 13 besteht, wie üblicherweise bei einer Einzelradregelung, die Gefahr, daß bei einem Fehler im elektronischen Steuergerät 2 oder am Drucksensor 8 bzw. 9 oder im Drucksteuerventil 3 bzw. 4 nur ein Rad 12 oder 13 gebremst wird. Dabei kann entweder ein Rad 12 oder 13 ungewollt bremsen, oder es kann ein Rad 12 oder 13 eventuell gar nicht bremsen. Dann tritt - eventuell sogar unvermittelt - ein großes Lenkradmoment auf. Ein solches Moment kann aber vom Fahrer nicht beherrscht werden und stellt ein hohes Sicherheitsrisiko dar.In the described individual control of the brake pressure for each vehicle wheel 12 or 13, as is customary in the case of individual wheel control, there is the risk that in the event of a fault in the electronic control unit 2 or on the pressure sensor 8 or 9 or in the pressure control valve 3 or 4, only one wheel 12 or 13 is braked. Either a wheel 12 or 13 can brake unintentionally, or a wheel 12 or 13 may not brake at all. Then a large steering wheel torque occurs - possibly even suddenly. However, such a moment cannot be mastered by the driver and represents a high security risk.

Mit dem erfindungsgemäß vorgesehenen, mit der Bremsanlage verknüpften Lenkradmomenten-Sensor 19 wird nun die Möglichkeit eröffnet, beim Auftreten eines derart großen Lenkradmomentes über das Steuergerät 2 Notfunktionen auszulösen. So können z. B. an der Vorderachse 14 die Bremszylinder 5 und 6 beide entlüftet werden, oder es kann der Bremszylinderdruck zumindest so weit abgesenkt werden, daß das Fahrzeug mit seiner Lenkung beherrschbar bleibt.With the steering wheel torque sensor 19 provided according to the invention and linked to the brake system, the possibility is now opened of triggering 2 emergency functions via the control unit when such a large steering wheel torque occurs. So z. B. on the front axle 14, the brake cylinders 5 and 6 are both vented, or the brake cylinder pressure can be reduced at least so far that the vehicle remains controllable with its steering.

Bei einer Arbeit des Blockierschutzes auf ungleicher Fahrbahn links und rechts (u-split) tritt ebenfalls ein Lenkradmoment auf, das der Lenkradmomenten-Sensor 19 an das elektronische Steuergerät 2 meldet. Mit Hilfe dieses Signals des Sensors 19 kann das elektronische Steuergerät 2 in die Blockierschutz-Regelung eingreifen und den optimalen Kompromiß zwischen Giermoment-Abschwächung und kurzem Bremsweg finden.When the anti-lock system works on an uneven lane on the left and right (u-split), a steering wheel torque also occurs, which the steering wheel torque sensor 19 reports to the electronic control unit 2. With the help of this signal from the sensor 19, the electronic control unit 2 can intervene in the anti-lock control and find the optimal compromise between yaw moment attenuation and short braking distance.

Bei der in der Patentzeichnung dargestellten elektronischen, mittels Elektromotor betriebenen Servolenkung sind Lenkradmoment-Sensoren zum Einleiten der Servokraft durchaus üblich und stellen an sich keine Erfindung dar. Es ist hier aber darauf hinzuweisen, daß z. B. durch die Verwendung einer Signalverbindung zwischen dem elektronischen Steuergerät für die elektronische Servolenkung und dem elektronischen Steuergerät 2 für die Bremsanlage die erfindungsgemäße Bremsanlage ebenfalls verwirklicht werden kann.In the electronic power steering operated by means of an electric motor shown in the patent drawing, steering wheel torque sensors for introducing the servo force are quite common and do not constitute an invention per se. However, it should be pointed out here that e.g. B. by using a signal connection between the electronic control unit for the electronic power steering and the electronic control unit 2 for the brake system, the brake system according to the invention can also be realized.

Der Kern der Erfindung besteht darin, daß ein Lenkmomenten-Sensor derart mit einer elektronisch geregelten, elektro-pneumatischen Bremsanlage mit Einzelradregelung verbunden wird, daß Lenkradmomente beim Bremsen ausgeregelt und gefährlich große Lenkmomente vermieden werden.The essence of the invention is that a steering torque sensor is connected to an electronically controlled, electro-pneumatic braking system with individual wheel control in such a way that steering wheel moments are corrected when braking and dangerously large steering torques are avoided.

Abschließend wird darauf hingewiesen, daß die Ansprüche und insbesondere der Hauptanspruch Formulierungsversuche der Erfindung ohne umfassende Kenntnis des Stands der Technik und daher ohne einschränkende Präjudiz sind. Daher bleibt es vorbehalten, alle in der Beschreibung, den Ansprüchen und der Zeichnung dargestellten Merkmale sowohl einzeln für sich als auch in beliebiger Kombination miteinander als erfindungswesentlich anzusehen und in den Ansprüchen niederzulegen sowie den Hauptanspruch in seinem Merkmalsgehalt zu reduzieren.In conclusion, it is pointed out that the claims and in particular the main claim attempts to formulate the invention without extensive knowledge of the prior art and therefore without restrictive prejudice. It is therefore reserved to consider all the features presented in the description, the claims and the drawing both individually and in any combination with one another as essential to the invention and to lay them down in the claims and to reduce the main content of the main claim.

Claims (6)

1. Elektro-pneumatische Bremsanlage mit einem elektrischen Bremswertgeber sowie mit mindestens einem mit einem elektronischen Steuergerät ausgerüsteten elektrischen Steuerkreis, über den ein, jedem Bremszylinder vorgeordnetes Drucksteuerventil ansteuerbar ist, das beim Bremsen Druckluft aus einem Vorratsbehälter in den Bremszylinder und beim Bremslösen zur Außenluft gelangen läßt, dadurch gekennzeichnet, daß das elektronische Steuergerät (2) außer zur Brems-Signalverarbeitung auch noch für die Signalverarbeitung von Sensorsignalen eines Lenksystems ausgerüstet ist und daß die Lenksensorsignale beim bremsbewirkten Ansteuern der Drucksteuerventile zwecks Ausregeln der Lenkmomente mit berücksichtigt werden.1.Electro-pneumatic brake system with an electrical brake value transmitter and with at least one electrical control circuit equipped with an electronic control unit, via which a pressure control valve arranged upstream of each brake cylinder can be controlled, which allows compressed air to escape from a reservoir into the brake cylinder when braking and to the outside air when braking is released , characterized in that the electronic control unit (2) is equipped not only for brake signal processing but also for signal processing of sensor signals of a steering system and that the steering sensor signals are also taken into account when the pressure control valves are activated in order to regulate the steering torques. 2. Elektro-pneumatische Bremsanlage nach Anspruch 1, dadurch gekennzeichnet, daß das elektronische Steuergerät (2) bei zu großen Giermomenten mit Hilfe der Lenksensorsignale ein Warnsignal emittiert.2. Electro-pneumatic brake system according to claim 1, characterized in that the electronic control unit (2) emits a warning signal when the yawing moments are too great with the aid of the steering sensor signals. 3. Elektro-pneumatische Bremsanlage nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß das elektronische Steuergerät (2) bei einseitigem und schiefziehendem Bremsen mit Hilfe der Lenksensorsignale ein Warnsignal emittiert.3. Electro-pneumatic brake system according to claim 1 or 2, characterized in that the electronic control unit (2) emits a warning signal with one-sided and oblique braking with the aid of the steering sensor signals. 4. Elektro-pneumatische Bremsanlage nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, daß das elektronische Steuergerät (2) außer mit den Bremssignalen mit den Sensorsignalen eines einzigen Lenksensors beschickbar ist.4. Electro-pneumatic brake system according to one of claims 1 to 3, characterized in that the electronic control unit (2) can be loaded with the sensor signals of a single steering sensor in addition to the brake signals. 5. Elektro-pneumatische Bremsanlage nach Anspruch 4, dadurch gekennzeichnet, daß der Lenksensor ein Lenkradmomentsensor (19) ist.5. Electro-pneumatic brake system according to claim 4, characterized in that the steering sensor is a steering wheel torque sensor (19). 6. Elektro-pneumatische Bremsanlage nach Anspruch 4, dadurch gekennzeichnet, daß der Lenksensor ein Lenkwinkelsensor (18) ist.6. Electro-pneumatic brake system according to claim 4, characterized in that the steering sensor is a steering angle sensor (18).
EP91116391A 1990-10-24 1991-09-26 Electro pneumatic brake system Withdrawn EP0482374A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4033767 1990-10-24
DE19904033767 DE4033767A1 (en) 1990-10-24 1990-10-24 ELECTRO-PNEUMATIC BRAKE SYSTEM

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EP0482374A1 true EP0482374A1 (en) 1992-04-29

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DE (1) DE4033767A1 (en)

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0545325A1 (en) * 1991-11-29 1993-06-09 Mitsubishi Jidosha Kogyo Kabushiki Kaisha Apparatus and method for controlling the rear wheel braking force of a vehicle
WO1998013239A1 (en) * 1996-09-28 1998-04-02 Robert Bosch Gmbh Air brake system with anti-wheel lock device
EP0844155A2 (en) * 1996-11-20 1998-05-27 WABCO GmbH Yaw rate reduction procedure in a vehicle with an anti-lock bracking system
EP1167141A1 (en) * 2000-06-20 2002-01-02 KNORR-BREMSE SYSTEME FÜR NUTZFAHRZEUGE GmbH Stabilization of articulated trains
WO2002009990A1 (en) * 2000-08-02 2002-02-07 Knorr-Bremse Systeme für Nutzfahrzeuge GmbH Stabilizing device for motor vehicles comprising compressed-air braking systems
WO2002062639A1 (en) * 2001-02-02 2002-08-15 Continental Teves Ag & Co. Ohg Method for controlling brake pressure
DE10244557A1 (en) * 2002-09-25 2004-04-08 Continental Teves Ag & Co. Ohg Method for improving the driving properties of a vehicle
ES2238904A1 (en) * 2003-06-17 2005-09-01 Javier Sancha Montes Road safety device for use on highway, has black and white markings painted on road surface, where markings are read by computer using photocell, and provisions acted on hardening accelerator
EP1884450A3 (en) * 2006-07-25 2009-09-02 Robert Bosch Gmbh Driving dynamics regulator with a torque sensor fitted in the steering mechanism
WO2016026615A1 (en) * 2014-08-22 2016-02-25 Knorr-Bremse Systeme für Nutzfahrzeuge GmbH Method for controlling a service brake device actuated by a service brake valve device as well as service brake device
WO2016045652A1 (en) * 2014-09-22 2016-03-31 Knorr-Bremse Systeme für Nutzfahrzeuge GmbH Electric equipment of a vehicle, comprising an at least partly electric braking and steering device with high-availability
DE102015202860A1 (en) 2015-02-17 2016-08-18 Continental Automotive Gmbh Fluid actuator for haptic-sensitive signal on a pedal

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6597975B1 (en) * 1999-03-10 2003-07-22 Honda Giken Kogyo Kabushiki Kaisha Vehicle co-operative control system
DE10347179A1 (en) * 2003-10-10 2005-05-12 Zf Lenksysteme Gmbh Vehicle steering system has means for limiting the vehicle speed if the steering monitoring system detects a steering torque value that differs widely from a theoretical value in magnitude, duration or frequency

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3518221A1 (en) * 1984-05-21 1985-11-21 Nissan Motor Co., Ltd., Yokohama, Kanagawa BREAK-OUT SENSITIVE BRAKE CONTROL SYSTEM FOR MOTOR VEHICLES
EP0256283A2 (en) * 1986-08-07 1988-02-24 Robert Bosch Gmbh Vehicle brake installation
EP0323066A2 (en) * 1987-12-28 1989-07-05 Ford Motor Company Limited Automotive system for dynamically determining road adhesion
DE3922528C1 (en) * 1989-07-08 1990-07-19 Daimler-Benz Aktiengesellschaft, 7000 Stuttgart, De Detecting limit of ground adhesion of vehicle tyres - measuring steering arm torque comparing measured valve with reference and comparing difference to threshold value

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3518221A1 (en) * 1984-05-21 1985-11-21 Nissan Motor Co., Ltd., Yokohama, Kanagawa BREAK-OUT SENSITIVE BRAKE CONTROL SYSTEM FOR MOTOR VEHICLES
EP0256283A2 (en) * 1986-08-07 1988-02-24 Robert Bosch Gmbh Vehicle brake installation
EP0323066A2 (en) * 1987-12-28 1989-07-05 Ford Motor Company Limited Automotive system for dynamically determining road adhesion
DE3922528C1 (en) * 1989-07-08 1990-07-19 Daimler-Benz Aktiengesellschaft, 7000 Stuttgart, De Detecting limit of ground adhesion of vehicle tyres - measuring steering arm torque comparing measured valve with reference and comparing difference to threshold value

Cited By (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5332296A (en) * 1991-11-29 1994-07-26 Mitsubishi Jidosha Kogyo Kabushiki Kaisha Apparatus and method for controlling rear wheel braking force of vehicle
EP0545325A1 (en) * 1991-11-29 1993-06-09 Mitsubishi Jidosha Kogyo Kabushiki Kaisha Apparatus and method for controlling the rear wheel braking force of a vehicle
WO1998013239A1 (en) * 1996-09-28 1998-04-02 Robert Bosch Gmbh Air brake system with anti-wheel lock device
EP0844155A2 (en) * 1996-11-20 1998-05-27 WABCO GmbH Yaw rate reduction procedure in a vehicle with an anti-lock bracking system
EP0844155A3 (en) * 1996-11-20 1999-07-21 WABCO GmbH Yaw rate reduction procedure in a vehicle with an anti-lock bracking system
EP1167141B2 (en) † 2000-06-20 2018-07-25 KNORR-BREMSE Systeme für Nutzfahrzeuge GmbH Stabilization of articulated trains
EP1167141A1 (en) * 2000-06-20 2002-01-02 KNORR-BREMSE SYSTEME FÜR NUTZFAHRZEUGE GmbH Stabilization of articulated trains
WO2002009990A1 (en) * 2000-08-02 2002-02-07 Knorr-Bremse Systeme für Nutzfahrzeuge GmbH Stabilizing device for motor vehicles comprising compressed-air braking systems
WO2002062639A1 (en) * 2001-02-02 2002-08-15 Continental Teves Ag & Co. Ohg Method for controlling brake pressure
DE10244557A1 (en) * 2002-09-25 2004-04-08 Continental Teves Ag & Co. Ohg Method for improving the driving properties of a vehicle
WO2004031010A1 (en) 2002-09-25 2004-04-15 Continental Teves Ag & Co.Ohg Method for improving the handling characteristic of a vehicle during emergency braked driving
ES2238904A1 (en) * 2003-06-17 2005-09-01 Javier Sancha Montes Road safety device for use on highway, has black and white markings painted on road surface, where markings are read by computer using photocell, and provisions acted on hardening accelerator
EP1884450A3 (en) * 2006-07-25 2009-09-02 Robert Bosch Gmbh Driving dynamics regulator with a torque sensor fitted in the steering mechanism
WO2016026615A1 (en) * 2014-08-22 2016-02-25 Knorr-Bremse Systeme für Nutzfahrzeuge GmbH Method for controlling a service brake device actuated by a service brake valve device as well as service brake device
WO2016045652A1 (en) * 2014-09-22 2016-03-31 Knorr-Bremse Systeme für Nutzfahrzeuge GmbH Electric equipment of a vehicle, comprising an at least partly electric braking and steering device with high-availability
CN107000726A (en) * 2014-09-22 2017-08-01 克诺尔商用车制动系统有限公司 The braking of at least part electric with high availability and the vehicle electric equipment of transfer
US10137875B2 (en) 2014-09-22 2018-11-27 Knorr-Bremse Systeme Fuer Nutzfahrzeuge Gmbh Electric equipment of a vehicle, comprising an at least partly electric braking and steering device with high availability
CN107000726B (en) * 2014-09-22 2020-03-13 克诺尔商用车制动系统有限公司 Vehicle electrical system with at least partially electric braking and steering device having high availability
DE102015202860A1 (en) 2015-02-17 2016-08-18 Continental Automotive Gmbh Fluid actuator for haptic-sensitive signal on a pedal
WO2016131454A1 (en) 2015-02-17 2016-08-25 Continental Automotive Gmbh Fluid actuator for haptically perceptible signal at an accelerator pedal

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DE4033767A1 (en) 1992-04-30
CS322091A3 (en) 1992-05-13

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